diff --git a/.lintr b/.lintr
index e9a59a70..a9578238 100644
--- a/.lintr
+++ b/.lintr
@@ -4,7 +4,6 @@ linters: linters_with_defaults(
     object_length_linter(80),
     object_name_linter = NULL,
     object_usage_linter = NULL,
-    assignment_linter = NULL,
     brace_linter = NULL,
     commented_code_linter = NULL,
     cyclocomp_linter = NULL,
diff --git a/R/aaa-globals.R b/R/aaa-globals.R
index bc0f5f52..bf88baa6 100644
--- a/R/aaa-globals.R
+++ b/R/aaa-globals.R
@@ -5,32 +5,32 @@
 
 ## Mutable values that might be modified by the user (code borrowed from knitr)
 # merge elements of y into x with the same names
-merge_list = function(x, y) {
-  x[names(y)] = y
+merge_list <- function(x, y) {
+  x[names(y)] <- y
   x
 }
 
-new_defaults = function(value = list()) {
-  defaults = value
+new_defaults <- function(value = list()) {
+  defaults <- value
 
-  get = function(name, default = FALSE, drop = TRUE) {
-    if (default) defaults = value  # this is only a local version
+  get <- function(name, default = FALSE, drop = TRUE) {
+    if (default) defaults <- value  # this is only a local version
     if (missing(name)) defaults else {
       if (drop && length(name) == 1) defaults[[name]] else {
         setNames(defaults[name], name)
       }
     }
   }
-  set = function(...) {
-    dots = list(...)
+  set <- function(...) {
+    dots <- list(...)
     if (length(dots) == 0) return()
     if (is.null(names(dots)) && length(dots) == 1 && is.list(dots[[1]]))
       if (length(dots <- dots[[1]]) == 0) return()
     defaults <<- merge(dots)
     invisible(NULL)
   }
-  merge = function(values) merge_list(defaults, values)
-  restore = function(target = value) defaults <<- target
+  merge <- function(values) merge_list(defaults, values)
+  restore <- function(target = value) defaults <<- target
 
   list(get = get, set = set, merge = merge, restore = restore)
 }
diff --git a/R/hooks.R b/R/hooks.R
index 410c11c7..6891d491 100644
--- a/R/hooks.R
+++ b/R/hooks.R
@@ -17,9 +17,9 @@ snapshotHook <- function(expr, value, ok, visible) {
       project <- .packrat_mutables$get("project")
 
       if (is.null(project)) {
-        file = "" ## to stdout
+        file <- "" ## to stdout
       } else {
-        file = file.path(project, "packrat", "packrat.log")
+        file <- file.path(project, "packrat", "packrat.log")
       }
 
       if (inherits(e, "simpleError")) {
diff --git a/R/rstudio-protocol.R b/R/rstudio-protocol.R
index b175710e..38a0d92d 100644
--- a/R/rstudio-protocol.R
+++ b/R/rstudio-protocol.R
@@ -12,4 +12,4 @@
 #   the protocol version number, is used to determine whether the package is too
 #   old to be compatible.
 
-.RStudio_protocol_version = 1
+.RStudio_protocol_version <- 1